Derailment-guard.



No. 773.409. 7 PATENTED OCT. 25, 1904.

' B. MUELLER.

DERAILMENT GUARD. APPLICATION FILED MAE.- s, 1904.

N0 MODEL.

wmvsssss; I //v VENTOH Emil Mueller A TTOHNE Y8 UNITED STATES Patented October 25, 1904.

EMIL MUELLER, OF ALSEV, NEW YORK.

DERAILME NT-GUARD.

SPECIFICATION forming part of Letters Patent No. 773,409, dated October 25, 1904.

I Application filed March 3, 1904. Serial No. 196,472. (No model.)

To In Ho t/:1, I 'it 'nuty concern:

Be it known that l, EMIL MUELLER, a subject of the Emperor of Germany, and a resident of Alsen, in the county of Greene and State of New York, have made an Improvement in Derailment-Guards, of which the following is a specification.

My invention relates to a safety attachment for the trucks of railway-cars, the same being adapted to slide upon the rails and afford support for the trucks and also auto maticall y apply the air-brake when the Wheels of the trucks are derailed.

The invention is embodied in the construction, arrangement, and combination of parts hereinafter described and shown in accompanying drawings, in which Figure 1 is aside view of a car-truck provided with my improved attachment. is an end view of the same. Fig. 3 is a side view of my improved safety attachment proper. Fig. 4 is an end view of the same.

, In Figs. 1 and 2, A indicates the frame, and B the wheels, of a car-truck, which may be constructed in the usual or any preferred manner.

My improved safety attachment is applied between the wheels B and secured to a framebar. The attachment comprises broad shoes (1, which are curved on the under side longitudinally or in line with the frame of the cartruck. The upper sides of the runners or slides thus formed are flat or horizontal and duly secured to the cross-bar H, forming part of the truck-frame. The under side of the shoe is provided with side flanges 0,,as shown. The central portion 0 of the shoe is tubular and adapted to receive a vertical slidable bar D. The lower end of said bar normally projects below the lowest point of the curved under side of the shoe C and is provided with a head cl, which is extended laterally, as shown in Fig. 4. The under side of the shoe proper, C, is provided with arecess 0 adapted to receive the head or shoe cl when the bar D is adjusted upward, as indicated by dotted lines, Fig. 4. At such time the head or shoe Fig. 2

of the bar D will lie flush in the cavity or recess of the shoeflC. The upper ends of the slidable bars D are connected by a cross-rod E, (see Figs. 1 and 2,) and this in turn is connected with an elbow-lever F, which is pivoted at f to a fixed portion of the truck-frame. A rod G is attached to the other arm of the elbow-lever F and by suitable means is operatively connected with an air-escape cock applied to a pipe connected with or forming part of the air-brake system.

The operation of my attachment is as follows: In case two or more of the Wheels of the truck should leave the rails the truck would fall and the fixed shoes C strike upon the rails and ride thereon. In such case the heads or shoes (Z of the slidable bars D also come in contact with the rails, and the bars will thus be forced upward into the position indicated by dotted lines, Fig. 4. Such movement will obviously rock the elbow-lever F upon its fulcrum f, and thereby open the airescape cock of the air-brake, so that the brakes Will be automatically applied at the same time that the truck will be supported wholly or in part by the safety attachment.

In order to hold the bars D in the raised position, I prefer to employ locking-pawls, (see Fig. 3,) the samebeing adapted to engage notches formed in the bars;

What I claim is- The combination, with a car-truck, and fixed shoes attached to the truck-frame between the front and rear Wheels and having their under sides convex and arranged in line with said wheels, of vertical bars arranged slidably in suitable guides forming part of such fixed shoes and provided with heads which are enlarged laterally, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EMIL MUELLER. Witnesses: 7

JOHN M. ADAMS, JOHN PRIGGE. 

